Liquid-sterilizer.



UNITED STATES PATENT OFFICE.

DANIEL L. HOLDEN, OF NEW YORK, N. Y., ASSIGNOR TO FEDERAL ICE COMPANY, OF NEW YORK, A CORPORATION OF NEW YORK.

LlQUlD-STERILIZER.

Specification of Letters Patent.

Patented Dec. 11, 1906.

Application filed March 12, 1906. Serial No. 305,527.

To ctlZ whom it may concern:

Be it known that I, DANIEL L. HOLDEN, a citizen of theUnited States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Liquid-Sterilizers, of which the following is a specification.

My invention relates to improvements in means for the purification of water by sub jecting it to pressure and heat and liberating the same into a vacuum-chamber, by this means killing the bacteria and blowing the water into atoms by the release of its contained pressure, also obviating the necessity of evaporating all of the Water, and thereby effecting a great saving of fuel over the com mon evaporation process.

My mechanism is especially ada ted for ice-machines, although it may be uti ized for other purposes where water purification is desired. I

The mechanism is automatic, coolingwater being first conducted to a condenser, then passing through a heater, and there after flows into the condenser intermittently, the inflow being regulated by the vacuum in the condenser, and which automatically controls mechanism for permitting the flow of hot water when the vacuum takes place. The atomized water then flows through a series of perforated plates to scatter it and release the air and then surrounds asysteni of cooling-pipes, after which it passes to the freezing cylindertank. (Not shown.)

My mechanism will be explained more in detail in the specification and illustrated in the accompanying drawings, inwhich Figure 1 is a view mostly in central vertical section, some of the details not being in section. Fig. 2 is a plan of the condensertube sheets, showing the arrangement of its tubes. Fig. 3 is a section on line X X, Fig. 1, showing a plan of the perforated scatteringplates. Fig. 4 shows the automatic hotwater-releasing mechanism as when closed.

Similar figures of reference indicate similar parts throughout the views.

The condenser is formed by a cylindrical shell 1, to which is secured lower tube-sheet 2 by ring 3 and an upper tube-sheet 4, secured by ring 5, and to which a hood 6, forming a vacuum-chamber 7, is attached. Tubes 8 are secured to sheets 2 4.

The supply of cold water for condensation and to be heated enters by pipe 9 from any suitable source of supply. Pipe 10 is the overflow means from the condenserand delivers the water to the heater 11, formed by a sheet 12, having heads 13 14 secured by rings 15 16, head 13 having a stuffing-box 17 and gland 18 and head 14 being similarly provided for by stuffing-box 19, with a gland 20. The stufiing-boxes permit the expansion and contraction of the coil. A pipe 21 enters heater 11 through stufiing-box 17, is then formed into a coil 22, and has its exit through stuffing-box 19 to a steam-trap. (Not shown.) Live steam is supplied to the coil and heats the water in heater 11 to the desired temperature, which thereafter flows through pipe 23 to the expansion and cooling chainber 24 immediately below condensertubes 8, which it enters to be atomized, the released vapor rising in tubes 8 and being subjected to the cooling produced on the tubes by the surrounding body of cold water and where it is reconverted to its liquid form, the air passing out through valve 25 and pipe 26, preferably attached to a vacuum-pump.

Expansion and cooling chamber 24 is formed by a sheet 27, the condenser-tube sheet 2, secured by ring 28, and a lower head 29, secured by ring 30. The chamber has a lower stufling-box 31, with a gland 32, and a side stufiing-box 33, with a gland 34. A cooling-pipe enters through stufling-box 31, is formed into a coil 36 within the chamber, and passes out through stufling-box 33, the stuffing-boxes permitting the coil to expand and contract without leakage from the coolingchamber, the ipe finally passing to a steamtrap. (Not shown.) Above coil 36 a series of perforated plates 37 are supported on a ring 38, secured to sheet 27, with a central rod 39 passing through the plates, and between the plates over the rod are thimbles 40 to separate the plates. The plates thus arranged may be removed in a body for cleansing. The perforations of the plates are shown in Fig. 3. Pipe 41 conveys the cooled water to the freezing cylinder-tank (not shown) and is provided with a checkby the use of the rolling Weight 49.

valve 42. Chamber 7 has connected thereto a vacuum pipe 43, leading to casing 44, mounted on a bracket 45, and Within the easing is a flexible and yielding diaphragm 46. The diaphragm has a connected rod 47 reaching downward and attached to a leverpan 48, formed with a bottom part, with upwardly-extending sides .and ends, and a rolling weight 49 is placed in the inclosed space formed by the lever-pan. The pan is pivotally fulcrumed on a bracket 50, and toward its outer end a rod 51 is attached, its opposite end engaging a lever 52, operating a valve 53, which opens and closes the pipe 23, a quick opening and closing being insured Cleaning-hole 54 is provided for heater 11, and 55 for expansion and cooling chamber 24.

The operation of my mechanism is as follows: Heater 11 and its coil 22 having previously received water from condenser 1, it

heats it to the desired temperature, when valve 53 being opened by the attendant, as

shown in Fig. 1, a volume of hot water enters chamber 24, where it is atomized, and the va or which is released therefrom arises to tub es 8 of the condenser 1, filling the tubes, chamber 7, pipe 43, and forcing down diahragm 46, its rod 47, tripping-pan 48, and lifting-rod 51, which closes valve 53, and

'weight 49 passing inward holds these parts in the closed positions just described, and, as

seen in Fig. 4, the cold water surrounding tubes 8 in condenser 1 now cools them and condenses the steam, which as water now descends in the tubes to plates 37 and together with the atomized water is scattered through their perforations, affording opportunity for the release of all air. It then passes to coil 36 to be thoroughly cooled,

tilting lever-pan 48 downward at its outer end, pushing down rod 50, and operating valve 53 for another inflow of hot water to the expansion and cooling chamber and the condenser, while weight 49 moves outward 'to hold the valve 53 open, the opening and closing of valve 53 being automatic.

It will be evident that any mechanism which is pressure-operated could be substituted for the diaphragm.

I claim 1. "In a water-purifier, a condenser, comprising a cylindrical shell and tubes therein, means to introduce cold water around the tubes, a heater having means for hot-water communication with the interior of the con- 'densertubes, means for opening and closing the communication, and means operative by the action of steam-pressure and its condensation whereby the opening and closing of the communication between the heater and the condenser-tubes is alternately effected.

2. In a water-purifier, a condenser, a heating-chamber, an expansion and cooling chamber, a heating-coil in the heating-chamber, a cooling-coil in the cooling-chamber, a waterinlet to the condenser, a communication from the heating-chamber to the condenser and to the expansion and cooling chamber, a valve in the communication and means to open the valve for admission of hot water from the heating to the expansion and cooling chamber and the condenser-tubes, when condensation takes place, and to close the same when steam-pressure exists in the condensertubes.

3. In a water-purifier, a condenser having watersurrounded tubes, and means for such water admission, a heater having a coil and means for the passage of water from the condenser to the heater, and hot water from the heater to the condenser within its tubes; automatic means to admit intermittent volumes of hot Water from the heater to the condenser; an expansion and cooling chamber in communication with the condenser-tubes, and therein a series of perforated scatteringplates and a cooling-coil for separating and cooling the water of condensation, and releasing the air.

4. In a water-purifier, a multiple-tube condenser, a coil-heater, an expansion andcooling chamber, with scattering-plates and a cooling-coil, and arranged in the order named, means for their intercommuni cation, for sterilizing purposes, and an air-valve located on the condenser, available for communication with a vacuum-pipe.

5. In awater-purifier, a condenser, a heater and an expansion and cooling chamber in the order named, means for fluid flowing to the condenser, thence to the heater, for heating to a desired degree; thence to the condenser for condensation; thence to the cooler for cooling; means to automatically control the passing of hot water to the condenser by the alternate action of steam-pressure and a vacuum created by the condensation of the steam released from the hot water. I

6. In a water-purification system, an expansion and cooling chamber, a cooling-coil therein, a series of scattering-plates, the lower one having side support and centrally supporting the others for easy removal adapted to receive the. water of condensation and atomization and retard its progress, topermit the escape of air, and means-to remov ably secure the plates in the cooling-chamber.

7. In a water-purifier, a condenser, tubes therem, a vacuum-chamber and an air-valve connected therewith, a heater, a diaphragm having communication With the condenser- In testimony whereof I have signed my tubes, a connection from the diaphragm to a l name to this specification in the presence of 10 lever-pan, a fulcrum for the pan, a connectWo subscribing Witnesses. tion Tom the pan to a Valve located between 5 the condenser and the heater, and a rolling DANIEL HOLDEN Weight located in the pan and adapted to Witnesses: move from end to end of the pan, in manner RANsoM C. WRIGHT,

and form substantially as set forth. WILLIAM C. STOEVER. 

